单词：stroboscopic light
单词：stroboscopic light 相关文章
EXPLORATIONS - Lighthouses Keep Watch Over the North Carolina Coast This is Shirley Griffith. And this is Steve Ember with the VOA Special English program, EXPLORATIONS. Today we tell about the lighthouses that protect ships sailing along the coast o
2012年VOA慢速英语(十二)月
Lighthouses Keep Watch Over the North Carolina Coast This is Shirley Griffith. And this is Steve Ember with the VOA Special English program, EXPLORATIONS. Today we tell about the lighthouses that protect ships sailing along the coast of North Carolin
2013年VOA慢速英语(五)月
Tropical Storm Lee to Soak US Gulf Coast The U.S. Gulf Coast is getting a major soaking this weekend from Tropical Storm Lee. The storm is expected to dump as much as 50 centimeters of rain in parts of the southern states of Louisiana, Mississippi an
VOA标准英语2011年(九月)
Night Vision And Humans: Why Cant We See Color? When we are in a fairly dark room, or outside at night away from lights, we can still see, but we cant see the colors of things very well. Why is that? There are two kinds of light-sensitive organs loca
英语听力文摘 English Digest
Robots, becoming increasingly prevalent in factories and industrial plants throughout the developed world, are programmed and engineered to perform industrial tasks without human intervention. Most of today's robots are employed in the automotive ind
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Pronouns and Their Antecedents Today were going to talk about pronouns that don't clearly match up with the nouns they are supposed to replace. Readers become unhappy when they have to guess what noun a writer is talking about, or readers may even ch
英语语法 Grammar Girl
Century-Old Sailor Songs Delight Crowds Peter Kasin has been on staff with San Francisco's Maritime National Historical Park for 20 years. Like other park rangers, he escorts sightseers and ensures their safety during their visits. But there's one pa
VOA标准英语2012年(一月)
By Gary Thomas Washington 23 June 2006 Videotape has surfaced in the West of the hours leading up to a reported massacre in the town of Andijon in Uzbekistan just over one year ago. Human rights groups have said the Uzbek government indiscriminately
2006年VOA标准英语（六月）
A veil has lifted that shrouded my eyes 眼前的面纱 已经揭开 The folds that lay over me no longer lie 身上的禁锢 已不复存在 Your infinity is revealed to me 永远的你 就在我的面前 It shines in your infinite smile 常在我的笑
好听的英文歌曲
Kinetic artist Carlos Cruz-Diez was born and raised in Caracas, Venezuela, but has spent half of his 87 years in Paris. There he developed a worldwide following for works that challenge how we see color. His illusion-filled pieces are now on display
VOA标准英语2011年(二月)
Are Tanning Beds Safe? Millions of people go to tanning salons, some to get a base tan before they go away on a beach vacation. The idea of the base tan is that it will protect you from burning on your sun excursion, so that what you end up with is a
英语听力文摘 English Digest
Sunrise or Sunset? Yal: Don? Don: Yes, Yal? Y: We've been in this art museum for 5 hours now. And you've spent the whole time staring at that one photograph of sunset. D: Are you sure? Y: Of course I'm sure. You haven't budged. D: But are you sure it
英语听力文摘 English Digest
Frozen Smoke 固体烟 Male: What's as light as smoke but strong as a brick? Female: I'm gonna take a while guess and say... aerogel ? Male: Sorry,yaoyao,the answer is... Wait a second! Did you say aerogel ? How did you know? F:Yeap! Did you know tha
英语听力文摘 English Digest
More and more women have began smoking in the last few decades. One of the reasons is savvy marketing as Don explains to Yael in this Moment of Science. D: Yael, what's that in your hand? Y: Come on, Don. Haven't you seen a cigarette before? Every da
英语听力文摘 English Digest
D: Yael, what's that in your hand? Y: Come on, Don. Haven't you seen a cigarette before? Every day in the United States, about 1500 girls begin smoking, and I figured, why not do my share? D: But Yael, don't you know that tobacco kills more than 140,
英语听力文摘 English Digest
Dont Try This at Home! Heres a hypothetical scenario that is to remain hypothetical. In other words, dont do this. Okay. Youre cruising along a desert highway in your souped-up roadster, leaving the roadrunners in the dust. Unfortunately, you are not
英语听力文摘 English Digest
Where Does The Term'Limelight'Originate You're in the limelight now on this moment of science. If someone loves being in the limelight, that means they enjoy being the center of attention. We use the word now to mean social prominence, but have you e
英语听力文摘 English Digest
Why Are Some Headlights Blue-High Intensity Discharge Lamps 高强度气体放电（High-intensity discharge，简称HID）灯泡包含了下列这些种类的电灯：水银灯、金属卤化灯（也称作HQI）、高压钠灯、低压钠灯、高压
英语听力文摘 English Digest
Zippy Aliens 爱因斯坦的狭义相对论认为物体的运动速度越接近光速，时间越慢。在1971年，物理学家理查德基廷和乔伊哈夫勒验证了这个假想。他们将4个极为精确的原子钟放在一架普通航行的飞
英语听力文摘 English Digest
What Is Fire? 火是物质燃烧过程中散发出光和热的现象，是能量释放的一种方式。火焰分为焰心、中焰和外焰，温度由内向外依次增高。燃烧过程必须有可燃物、燃点温度、氧化剂三项并存，缺一
英语听力文摘 English Digest